Lower pump pressure

makdog · Postby **makdog** » Mon 19 Jul, 2010 17:48

I just had a new main drain installed, and when the pump was turned on i lost 6 psi , it used to run at 18psi and now runs at 12psi, is this normal with installing a new main drain?

Postby **mas985** » Mon 19 Jul, 2010 18:02

What was replaced? Cover, pipe, etc.

A more restrictive cover could lower the pressure but I doubt by that much. More than likely, the work caused some debris to clog the pump impeller and/or pipe.

makdog · Postby **makdog** » Mon 19 Jul, 2010 18:42

Just the cover was replaced, and new a pool finish, marquis exposed aggregate pool finish. so you think they could half clog the pipes?

Postby **mas985** » Tue 20 Jul, 2010 09:33

It's possible. That stuff can get in the pipes if the installer is not careful.